Vasey P L, Rains D, VanderLaan D P, Duckworth N, Kovacovsky S D
Department of Psychology, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada.
Behav Processes. 2008 Jul;78(3):401-7. doi: 10.1016/j.beproc.2008.02.006. Epub 2008 Feb 15.
Female Japanese macaques (Macaca fuscata) in the Arashiyama population near Kyoto, Japan, are unusual, in that they exhibit what many would consider to be male-typical sexual characteristics. Specifically, they mount other females within the context of temporary, but exclusive, sexual relationships (i.e., homosexual consortships) and they sometimes exhibit a preference for female sexual partners, even when given the choice of a sexually motivated male alternative. In this study, we examined whether female Japanese macaques also exhibited male-typical patterns of courtship behaviour during homosexual consortships. Data were collected on courtship behaviour during heterosexual and homosexual consortships in free-ranging Japanese macaques from the Arashiyama (Japan) population. We analyzed the occurrence of 12 different courtship behaviours during 3374 heterosexual inter-mount intervals and 1412 homosexual inter-mount intervals. Sex differences between heterosexually consorting males and females existed for only two of the 12 courtship behaviours we investigated: inclined-back presentations and sexual vocalizations. Dominant and subordinate homosexually consorting females were sex-typical in their expression of inclined-back presentations and sexual vocalizations. Consequently, facultative same-sex sexual partner preference, mounting and consortships do not co-occur with male-typical patterns of courtship behaviour in female Japanese macaques.
日本京都附近岚山种群的雌性日本猕猴（Macaca fuscata）与众不同，因为它们表现出许多人认为是雄性典型的性特征。具体而言，它们在临时但排他的性关系（即同性恋配偶关系）中骑跨其他雌性，并且有时即使可以选择有性动机的雄性，它们也会表现出对雌性性伴侣的偏好。在这项研究中，我们研究了雌性日本猕猴在同性恋配偶关系中是否也表现出雄性典型的求偶行为模式。我们收集了来自日本岚山种群的自由放养日本猕猴在异性恋和同性恋配偶关系中的求偶行为数据。我们分析了在3374个异性恋骑跨间隔和1412个同性恋骑跨间隔期间12种不同求偶行为的发生情况。在我们研究的12种求偶行为中，只有两种行为存在异性恋配偶的雄性和雌性之间的性别差异：后仰展示和性叫声。占主导地位和从属地位的同性恋配偶雌性在表达后仰展示和性叫声时具有性别典型特征。因此，兼性同性性伴侣偏好、骑跨和配偶关系在雌性日本猕猴中并不与雄性典型的求偶行为模式同时出现。
